skin

What is Dupixent, and what is it used for? Dupixent is a prescription medicine used: to treat people aged 12 years and older with moderate-to-severe atopic dermatitis (eczema) that is not well controlled with prescription therapies used on the skin (topical), or who cannot use topical therapies. Dupixent can be used with or without topical …

What is Keflex (cephalexin) and what is it used for? Cephalexin belongs to a class of antibiotics called cephalosporins. They are similar to penicillin in action and side effects. They stop or slow the growth of bacterial cells by preventing bacteria from forming the cell wall that surrounds each cell. The cell wall protects bacteria from the external environment and …

What are lice? Share Your Story Lice and fleas are tiny wingless insects that can infest humans and their homes. Lice are tiny parasites that can infest the human skin and scalp. They are wingless insects that are about the size of a sesame seed. Infestation with lice is known as pediculosis and can occur on the head (head lice), …

Lichen planus facts Lichen planus is a chronic recurrent skin disease of unknown cause with no established cure. Lichen planus generally affects adults and can involve any portion of the skin and lining tissue (mucous membranes) of the mouth and/or vagina, but it has a predilection for the wrists, ankles, and oral and genital tissues. Lichen planus is characteristically itchy. …

What’s the difference between skin tags and moles? Though skin cancer can look like a mole, true moles are harmless skin irregularities. Skin tags and moles are both types of skin growths. A skin tag is a small, soft balloon-shaped benign skin growth connected to the skin by a thin stalk. Skin tags are extremely common and harmless. They tend …

What is ringworm? What is eczema? Share Your Story Ringworm and eczema both cause itchiness. Ringworm is a common fungal infection of the skin (ringworm is also termed tinea or dermatophytosis), and the different types of ringworm are named for the location of the rash on the body (for example, tinea corporis [arm and/or leg], scalp [tinea capitis]). These infections …

What is Topical Calamine Lotion? How does it work (mechanism of action)? Calamine is a mixture of zinc oxide and other components. Calamine and zinc oxide are topical anti-itch lotions. Although the exact mechanism of how calamine and zinc oxide work is not known, they have skin protecting and astringent properties that relieve itching. They also seem to slow down …

Keloid facts Keloids are firm, pink to red, itchy, irritated bumps that tend to gradually enlarge and appear at the site of previous skin damage. Keloids develop as a consequence of abnormal scar formation. People with darker skin are typically more predisposed to develop keloids. Simply cutting out a keloid is likely to result in an even larger keloid developing …

What is mupirocin? How does it work (mechanism of action)? Mupirocin is an antibiotic that is used topically (on the skin) for the treatment of impetigo, a bacterial disease of the skin caused by Staphylococcus aureus, beta-hemolytic streptococcus and Streptococcus pyogenes. It also is used intranasally (inside the nose) by patients and some people who work in healthcare centers to …

What is methoxsalen? How does it work (mechanism of action)? Methoxsalen is a naturally occurring photoactive chemical found in the seeds of the Ammi majus (Umbelliferae) plant and in the roots of Heraclem candicans. It belongs to a group of compounds known as psoralens, or furocoumarins. It is used for treating psoriasis, idiopathic vitiligo (leucoderma) and cutaneous (skin) manifestations of …